Trainer Talk: What's the Secret to Toned Arms?

In our new series, "Trainer Talk," certified personal trainer and founder of CPXperience Courtney Paul gives his no-B.S. answers to all of your burning fitness questions. This week: What's the secret to toned arms? (And in case you missed last week's Trainer Talk installment: Why Can't I Only Do Cardio?)

According to Paul, it comes down to three things. First is variety. Switch up your moves with different types of exercises, including both bodyweight moves (like these exercises from Shaun T) and traditional dumbbell moves, to hit all the different sides of the muscle.

Lastly, if you want toned arms, you need to focus on your reps. If you think you can only do 15, push yourself to 20, Paul says. Because as every trainer will tell you, if it doesn't challenge you, it won't change you.

A great place to make sure you're hitting all three requirements for toned arms? Our 30-Day Arm Challenge.